Home / 1,930.50-2,895.75-1,906.20

Finding the Fourth Proportional to 1,930.50, 2,895.75 and 1,906.20

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Solution

The fourth proportional to 1,930.50, 2,895.75 and 1,906.20 is: 2,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,930.50 : 2,895.75 = 1,906.20 : x
  2. Step 2: Convert to fraction form
    1,930.50/2,895.75 = 1,906.20/x
  3. Step 3: Cross multiply
    1,930.50x = 2,895.75 × 1,906.20
  4. Step 4: Simplify right side
    1,930.50x = 5,519,878.65
  5. Step 5: Solve for x
    x = 5,519,878.65/1,930.50
  6. Step 6: Final answer
    x = 2,859.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.